/*  
 * Copyright 2008 CoreMedia AG, Hamburg
 *
 * Licensed under the Apache License, Version 2.0 (the License); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an AS IS BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */

package com.googlecode.mp4parser;


import com.coremedia.iso.IsoTypeReader;
import com.coremedia.iso.IsoTypeWriter;
import com.coremedia.iso.boxes.FullBox;

import java.nio.ByteBuffer;

/**
 * Base class for all ISO Full boxes.
 */
public abstract class AbstractFullBox extends AbstractBox implements FullBox {
  private int version;
  private int flags;

  protected AbstractFullBox(String type) {
    super(type);
  }

  protected AbstractFullBox(String type, byte[] userType) {
    super(type, userType);
  }

  public int getVersion() {
    return version;
  }

  public void setVersion(int version) {
    this.version = version;
  }

  public int getFlags() {
    return flags;
  }

  public void setFlags(int flags) {
    this.flags = flags;
  }


  /**
   * Parses the version/flags header and returns the remaining box size.
   *
   * @return number of bytes read
   */
  protected final long parseVersionAndFlags(ByteBuffer content) {
    version = IsoTypeReader.readUInt8(content);
    flags = IsoTypeReader.readUInt24(content);
    return 4;
  }

  protected final void writeVersionAndFlags(ByteBuffer bb) {
    IsoTypeWriter.writeUInt8(bb, version);
    IsoTypeWriter.writeUInt24(bb, flags);
  }
}
